ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
495 
The facts adduced by the author are of importance to the analytical 
chemist if he have to examine a mixture of several kinds of sugar. 
Peridium and Spores of TJredineae.* — Mr. H. J. Webber suggests 
that the size and form of the cells of the peridium, which he regards 
as being developed from secidiospores, may be useful characters in de- 
termining the species of Uredineae. He further describes peculiar spores 
in several species of Uredinese. In Puccinia flaccida the teleutospores, 
though often one-celled, are also frequently two-celled, and the septum 
may then be in almost any position, from nearly horizontal to vertical ; 
the author regards this species as more resembling a Uromyces than a 
Puccinia. In P. Sporoboli the teleutospores are one-, two-, or three-celled, 
the different forms occurring either in the same or in different sori. 
The teleutospores of P. Tanaceti are equally variable in structure. In 
Uropyxis Petalosfemonis the author has also observed a tliree-celled 
teleutospore. 
New Parasite on the Vine.f — Under the name TJredo Vialde Prof. 
G. Y. Lagerheim describes a new species, exceedingly destructive to the 
vines in Jamaica. The uredo-form alone is known, appearing as minute 
pustules, which cover more or less completely the under side of the leaves. 
Trichophyton tonsurans parasitic on Cervus elaphus.J — Dr. K. 
Eckstein finds the hairs of a specimen of Cervus elaphus attacked by this 
fungus, the mycele of which causes the disease of man and other 
animals known as “ Herpes tonsurans.” It causes disorganization of 
the cells of the hair, the entire pith passing over into a uniform granular 
mass, and the hairs finally falling off. Infection may be brought about 
by the carriage of the spores of the fungus by animal parasites. 
“Bladder-rust” of the Weymouth Pine.§— In addition to the well- 
known Peridermium Strobi and Pini, Dr. H. Klebahn now describes a third 
species, P. Cornui , parasitic on Pinus sylvestris, and probably on allied 
species. Its teleutospore-form is Cronartium asclepiadcum ; and the 
author gives a resume of the genetic connection between the vaiious 
teleutospore-forms Coleosporium and Cronartium , and the mcidio-forms 
Peridermium. 
Parasitism of Tremella Dulaciana on Agaricus nebularis.|| — 
M. C. Roumeguere describes a new fungus parasitic on Agaricus nebularis , 
to which he has given the name of Tremella Dulaciana. The parasite 
measures 5 mm. in length and 1 mm. in height. The head consists of 
a gelatinous globular whitish mass, showing to the naked eye a number 
of threads forming tortuous circles, and somewhat recalling Peziza 
Tamaricis. 
Thelephorese.H — Mr. G. Massee publishes a monograph of this order 
of Fungi, prefixed by a description of its general characters. There 
occur within the order all the types of hymenium characteristic of the 
* Amor. Natural., xxiv. (1830) pp. 177-80 (1 pi.). 
f Comptes Rendus, cx. (1890) pp. 728-9. J Zool. Anzeig., 1890, pp. 40-1. 
§ Hedwigia, xxix. (1890) pp. 27-35. Cf this Journal, 1889, p. 564. 
|| Rev. My col., xii. (1890) pp. 1-3. 
H Journ. Linn. Soc. (Bot.), xxv. (1889) pp. 107-55 (3 pis.), and xxvii. (1890) 
pp. 95-205 (3 pis.). v J 
